body {
	background-color:#ffffff;
	text-align:center;
	
}
div{
	border:1px solid #000000;
	margin:2px 2px 2px 2px;
}
#div_toptop{
	width:100%;
	height:30px;
}
#div_container{
	width:1020px;
	height:768px;
	margin:0 auto;
}
#div_top{
	width:1000px;
	height:70px;
	text-align:left;
}
#div_navigator{
	width:1000px;
	
}
#div_left{
	width:200px;
	height:500px;
	float:left;
}
#div_middle{
	width:600px;
	height:500px;
	float:left;
}
#div_right{
	width:200px;
	height:500px;
	float:left;
}
#bt{
	background-color:#74e168;
}
a{
	text-decoration:none;
	
}
a:hover{
	background-color:#e26185;
	text-decoration:underline;
}
.bookdiv{
	float:left;
	width:150px;
	height:180px;
	
	
}
.img1{
	
	width:50px;
	height:60px;
}
